//: C03:PassReference.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
#include <iostream>
using namespace std;

void f(int& r)
{
    cout << "r = " << r << endl;
    cout << "&r = " << &r << endl;
    r = 5;
    cout << "r = " << r << endl;
}

int main()
{
    int x = 47;
    cout << "x = " << x << endl;
    cout << "&x = " << &x << endl;
    f(x); // Looks like pass-by-value,
    // is actually pass by reference
    cout << "x = " << x << endl;
} ///:~
